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Table 3 Kaplan-Meier estimates of 5-year disease-free survival in relation to tumor and patient characteristics

From: Being 40 or younger is an independent risk factor for relapse in operable breast cancer patients: The Saudi Arabia experience

Characteristics Number Patients 5-year Survival Rate 95% CI P-value
Age     0.0353
   ≤ 40 288 0.7740 0.7201 – 0.8279  
   > 40 579 0.8346 0.8007 – 0.8685  
Node Status     
   • Positive 479 0.7667 0.7240 – 0.8094 < 0.0001
   • Negative 359 0.8957 0.8608 – 0.9306  
Tumor Size     
   ≤ 2 279 0.8534 0.8062 – 0.9006 0.0052
   3 – 5 475 0.8205 0.7823 – 0.8587  
   > 5 113 0.7021 0.6090 – 0.7952  
Number of Nodes     
   0 357 0.8953 0.8604 – 0.9302 < 0.0001
   1 – 3 261 0.8057 0.7524 – 0.8590  
   4 – 10 155 0.7624 0.6850 – 0.8398  
   > 10 60 0.5553 0.3969 – 0.7137  
Stage     
   I 105 0.8881 0.8220 – 0.9542 0.0252
   II 512 0.8307 0.7954 – 0.8660  
   III 140 0.7531 0.6731 – 0.8331  
Grade     0.0109
   I 45 0.9750 0.9266 – 1.0000  
   II 427 0.8290 0.7890 – 0.8690  
   III 321 0.7681 0.7171 – 0.8191  
Histo-pathology     
   • Infiltrating ductal 780 0.8145 0.7861 – 0.8429 0.2180
   • Infiltrating lobular 42 0.8682 0.7404 – 0.9960  
Lymphatic/Vascular Invasion 242 0.7458 0.6835 – 0.8081 0.0002
   • Both Positive 451 0.8599 0.8232 – 0.8966  
   • Both Negative     
Hormonal Receptor     
Status     
   • ER+ PR+ 351 0.8425 0.7960 – 0.8890 0.0069
   • ER- PR- 168 0.7942 0.7266 – 0.8618  
   • ER+ PR- 52 0.7866 0.6688 – 0.9044  
   • ER- PR+ 106 0.7113 0.6000 – 0.8226  
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